Dataset share links don't show any indication when page is loaded

[jorvis]

If you follow a share such as this one:

https://umgear.org/p?s=e50f226b

The page loads and the dataset is actually pre-loaded in the selector but there's nothing on the page to indicate this is true. The text there is rather vague. We should instead be clearly showing the share information and guiding the user to search for a gene.